Laboratory Safety Flashcards
Disinfection may be defined as a process that:
a. Removes all forms of microbial life
b. Is accomplished by physical means
c. Removes pathogenic organisms but not spores
d. Is used on living tissue
c. Removes pathogenic organisms but not spores
All of the following factors affect the outcome when using a disinfectant except:
a. Using water from a soft water system
b. Disinfecting a surface that contains large pores
c. The type of cloth used to wipe the surface
d. Temperature and pH
c. The type of cloth used to wipe the surface
In a chemical hygiene plan, the MSDS must include:
a. The facility’s name
b. The laboratory director’s credentials
c. The substance’s stability and reactivity
d. The purchase date
c. The substance’s stability and reactivity
Most laboratories use which type of re extinguisher?
a. Type A
b. Type B
c. Type C
d. Combination ABC
d. Combination ABC
When putting out a re in the laboratory, personnel should be sure to:
a. Grab anything that is not replaceable
b. Aim directly at the core of the re
c. Turn off the computer system
d. Activate the fire alarm and contain and extinguish the fire, if
possible
d. Activate the fire alarm and contain and extinguish the fire, if possible
Means of exposure to agents in the laboratory include all of the following except:
a. Percutaneous inoculation
b. Inhalation
c. Drinking water
d. Placing objects in the mouth
c. Drinking water
Removal of resistant bacterial spores can be accomplished using all of the following methods except:
a. Moist heat at 121°C at 15 psi
b. Incineration
c. Moist heat at 132°C for 1 hour d. Dry heat at 180°C for 3 hours
a. Moist heat at 121°C at 15 psi
Pasteurization is used to disinfect food products for all of the following reasons except:
a. To prevent the killing of avor-adding microorganisms
b. To prevent the destruction of essential vitamins and minerals in
the food
c. Food is not typically contaminated with organisms requiring
complete sterilization.
d. To remove food pathogens
c. Food is not typically contaminated with organisms requiring
complete sterilization.
When disinfecting a contaminated surface, which of the following would provide the most ef cient decontamination?
a. 100% bleach for 10 minutes
b. 80% bleach for 10 minutes
c. 70% ethyl alcohol for 8 minutes
d. 10% bleach for 5 minutes
d. 10% bleach for 5 minutes
An engineering control includes:
a. Positive air pressure capable of removing all hazardous
contaminants
b. Gloves, lab coats, and face shields
c. Safety caps provided on tubes
d. Use of biologic safety cabinets for sample processing
d. Use of biologic safety cabinets for sample processing
The laboratory received a stool culture from a patient experiencing severe abdominal cramps and bloody diarrhea. The sample should be minimally processed using:
a. BSL-1 safety practices
b. BSL-2 safety practices
c. BSL-3 safety practices
d. Insuf cient information is available to determine the correct
answer.
b. BSL-2 safety practices
Match each term with the correct description.
Standard Precautions
a. effective on laboratory benches
b. uses a filtering system
c. hazardous chemicals
d. kills all life forms
e. CDC guidelines
f. living tissue
g. temperatures exceed 870°C
e. CDC guidelines
Match each term with the correct description.
Sterilization
a. effective on laboratory benches
b. uses a filtering system
c. hazardous chemicals
d. kills all life forms
e. CDC guidelines
f. living tissue
g. temperatures exceed 870°C
d. kills all life forms
Match each term with the correct description.
Antiseptics
a. effective on laboratory benches
b. uses a filtering system
c. hazardous chemicals
d. kills all life forms
e. CDC guidelines
f. living tissue
g. temperatures exceed 870°C
f. living tissue
Match each term with the correct description.
Fume hood
a. effective on laboratory benches
b. uses a filtering system
c. hazardous chemicals
d. kills all life forms
e. CDC guidelines
f. living tissue
g. temperatures exceed 870°C
c. hazardous chemicals
